Why can't I see the options for Soft Credit on a transaction?

I'm on the Transaction tab of a constituent record. In the Transaction History, there is no link for Change Soft Credit or Remove Soft Credit under the Actions column. Why?

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Number:110911

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Luminate_Online

If the transaction is for a TeamRaiser registration, the options to change or remove a soft credit will not be available. Changing or removing soft credits can only be applied to donation transactions. To know if a transaction is for a registration or donation, look to the type column: